I've seen the claims of Britain being "invaded" by foreigners, and it always seemed more xenophobic noise and sensationalism than real evidence. People abroad often have a distorted view of violence in the US, too. Yellow journalism conflates suicides and self-defense with murder in their "gun deaths" reports, and offer no context about overall crime in the US compared to elsewhere, or showing how it is concentrated here in specific places associated with poverty and gang culture more than American gun culture as a whole.
In the recent debate over ICE, MAGA parrots (or perhaps bots... hard to tell who is even real now) keep harping on people murdered or raped by "illegals," but go strangely quiet when people bring up any statistics about overall crime rates being lower for "illegals" than the overall population. Of course, the data set is doubtless incomplete, but if the hypothesis of violent foreign invaders were accurate here, it should be unquestionably supported by even partial data.
We've known muckrakers and clickbaiters have been using photoshop for a couple decades now, so between social media rumor mills, dishonest websites, and modern A.I. slop, we should know damn well to take every claim with a grain of salt. But (stereotype time!) boomers in particular seem to like to tickle their confirmation bias and share complete nonsense.
RE: Different Strokes for Different Folks